N=2 Massive superparticle: the Minimality Principle and the k-symmetry

TL;DR

This paper investigates the electromagnetic interactions of N=2 massive superparticles, revealing that minimal coupling breaks k-symmetry and proposing a non-minimal action that determines the superparticle's anomalous magnetic moment.

Contribution

It introduces a non-minimal k-symmetric action for N=2 superparticles, showing how k-symmetry constrains the anomalous magnetic moment.

Findings

Minimal coupling breaks k-symmetry.

A non-minimal k-symmetric action is constructed.

k-symmetry uniquely determines the anomalous magnetic moment.

Abstract

The electromagnetic interaction of massive superparticles with N=2 extended Maxwell supermultiplet is studied. It is proved that the minimal coupling breaks the k-symmetry. A non-minimal k-symmetric action is built and it is established that the k-symmetry uniquely fixes the value of the superparticle's anomalous magnetic moment